Blender base



FIG. 1 is a top, front and right side perspective view of a blender base showing my new design;

FIG. 2 is a left side elevational view thereof, with the right side being a mirror image of the left side;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines showing the control buttons in FIG. 1 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a blender base, as shown and described. 